registry / Destructive action / kempo / 4.5.6

kempo@4.5.6

A fullstack CMS framework for creating websites with user authentication

AI Security Review

scanned 2d ago · by lpm-firewall-ai

The package exposes an explicit setup command, but its new-container cleanup can delete an existing database volume without a volume-specific confirmation. This is a concrete destructive risk, though the inspected behavior does not establish malicious intent.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

A user runs kempo init and proceeds with new-container setup.

Impact

An existing database volume with that name can be deleted.

Mechanism

The CLI stops and removes a container named from the project or database, then removes the matching PostgreSQL data volume.

AI rationale

Evidence

bin/cli.js

Decision evidence

public snapshot

AI called this Suspicious at 87.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

package.json exposes bin/cli.js as the kempo command.
The CLI proceeds only for the explicitly invoked init command.
During new-container setup, the CLI stops and removes a matching container, then removes the Docker volume named from the database name; an existing volume may contain user data.

Evidence against

The cleanup is in the user-invoked setup flow, which offers a new-container choice. A separate confirmation protects deletion of existing project files, but does not cover Docker volume removal.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedUrlStrings

ManifestNo manifest risk signals triggered.

scanned 349 file(s), 904 KB of source, external domains: docs.docker.com, lexical.dev, raw.githubusercontent.com, resend.com

Source & flagged code

6 flagged

bin/cli.jsView file

Lines 1-25javascript

1#!/usr/bin/env node

3import { existsSync, cpSync, mkdirSync, writeFileSync, rmSync } from 'fs';

4import { fileURLToPath, pathToFileURL } from 'url';

5import { join, dirname, basename } from 'path';

6import { execSync, spawnSync } from 'child_process';

7import crypto from 'crypto';

High

Child Process

Package source references child process execution.

bin/cli.jsView on unpkg · L5

8import inquirer from 'inquirer';

10const args = process.argv.slice(2);

11const command = args[0];

12const useDefaults = args.includes('-y') || args.includes('--yes');

14if(command !== 'init'){

15 console.log('Usage: npx kempo init [-y|--yes]');

16 process.exit(1);

17}

19const __filename = fileURLToPath(import.meta.url);

20const __dirname = dirname(__filename);

21const moduleRoot = join(__dirname, '..');

22const projectDir = process.cwd();

23const projectName = basename(projectDir);

25/*

High

Entrypoint Build Divergence

Manifest entrypoint contains risky behavior absent from dist/build output.

bin/cli.jsView on unpkg · L5

Lines 391-458javascript

391

392writeFileSync(join(projectDir, '.env'),

393`# Database

394DATABASE_URL=${databaseUrl}

395

396# Email${emailServiceSkipped ? '\n# Configure your email service — update the values below' : ''}

397RESEND_API_KEY=${

•matchType = previous_version_dangerous_delta matchedPackage = kempo@4.2.22 matchedIdentity = npm:a2VtcG8:4.2.22 similarity = 0.592 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/cli.jsView on unpkg

middleware/kempo.jsView file

Lines 82-122javascript

82 return { filePath: join(base, head), params: {} };

83 }

84 }

85 if(rest.length === 0){

86 for(const entry

Source & flagged code

6 flagged · loading source

bin/cli.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/cli.jsView on unpkg

5import { join, dirname, basename } from 'path'; L6: import { execSync, spawnSync } from 'child_process'; L7: import crypto from 'crypto';

High

Child Process

Package source references child process execution.

bin/cli.jsView on unpkg · L5

438stdio: 'inherit', L439: shell: true L440: });

High

Shell

Package source references shell execution.

bin/cli.jsView on unpkg · L438

5Manifest entrypoint (manifest.bin) carries capability families absent from dist/build output: environment+network, execution+network L5: import { join, dirname, basename } from 'path'; L6: import { execSync, spawnSync } from 'child_process'; L7: import crypto from 'crypto'; ... L19: const __filename = fileURLToPath(import.meta.url); L20: const __dirname = dirname(__filename); L21: const moduleRoot = join(__dirname, '..'); ... L25: /* L26: package.json L27: */ ... L65: const waitForPostgres = async (containerName, dbName = 'postgres') => { L66: process.stdout.write('Waiting for Postgres to be ready'); L67: for(let i = 0; i < 30; i++){

Findings

1 Critical4 High4 Medium4 Low

CriticalPrevious Version Dangerous Deltabin/cli.js

HighChild Processbin/cli.js

HighShellbin/cli.js

HighEntrypoint Build Divergencebin/cli.js

HighRuntime Package Installbin/cli.js

MediumDynamic Requiremiddleware/kempo.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to kempo@4.5.6.

See all versions of kempo for other recorded verdicts.

Review the evidence and your use of kempo@4.5.6 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-10-21 04:04:55.533Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.